Rolex Oyster Perpetual Cosmograph Daytona "Zenith El Primero" Black Dial 18K Yellow Gold Ref. 16528

$36,800.00 USD

Manufacturer: Rolex
Model: Oyster Perpetual Cosmograph Daytona Zenith El Primero
Reference Number: 16528
Movement: Automatic
Condition: Very good (some loss areas on the black painted tachymeter scale on the bezel, can be refinished)
Gender: Men’s/unisex
Time Period: 1995
Retail / Compare-At Price: n/a collector's item
Our Best Price: $36,800

Movement: -
Caliber: 4030
Jewels: 31 

Case Material: 18K yellow gold
Case Diameter: 40 mm
Thickness: 13 mm
Waterproof: 100 ft. / 30 m.
Water Resistance: 3 ATM
Material Bezel: Fixed 18K yellow gold engraved cosmograph tachymeter scale
Glass: Sapphire crystal
Dial: Black with champagne outer sub-dial rings 
Dial Numerals: 18K yellow gold applied baton with luminescent dart hour indices, railway track minutes/seconds scale  around the outer rim

Bracelet color: 18K yellow gold
Bracelet Material: Integral 18k yellow gold Oyster
Clasp: Folding Oysterlock safety clasp
Clasp material: 18K yellow gold

Centre hour, minute and seconds hands, chronograph (centre hand) accurate to within 1/8 of a second, chronograph sub-dials counters 60-second at 9 o'clock, 30-minute at 3 o’clock and 12-hour at 6 o’clock, tachymeter counter on the bezel, 72-hour power reserve

18K yellow gold and luminescent baton hands, yellow gold applied stick center sweep seconds hand
Double quickset, stop seconds for precise time setting
18K yellow gold solid screw-down brushed case back, screw-down chronograph pushbuttons, and a Triplock winding-crown with Rolex crown engraved protected by the crown guard
Solid three-body case, curved lugs, and flat angled bezel with a tachometer graduation to 400 UPH, are polished/brushed.
The ref. 16528 has a mechanical automatic self-winding Zenith El Primero caliber 4030 (Zenith base 400) movement. It's rhodium-plated, with oeil-de-perdrix embellishment. It's constructed with 31 jewels, a blue Parachrom hairspring, an Incabloc shock absorber device, and a straight-line lever escapement. It includes a monometallic balance that's adjusted to temperatures and 5 positions, a self-compensating free-sprung Breguet balance spring, and Microstella regulating screws.
This mechanism oscillates at a frequency of 28,800 vph (4 Hz).
Introduced in 1963 as a sports companion for professional race car drivers, the Daytona comes equipped with a Tachymeter bezel that can be used alongside the sub-dials to calculate speeds of up to 400 kilometers per hour. 
W serial 
Incomplete (box, no papers)